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Maintenance
QDV 15
C
Fig. 3
Fig. 6
ENGLISH
PACKING GLAND
Make sure that the stop valve pos.
C (fig. 3)
is closed before dis-
mounting the packing gland. Then
proceed with activation of the
QDV valve to make sure that it is
not under pressure. Now handle
and packing gland may be remo-
ved (fig. 4).
REPLACEMENT OF O-RINGS
(FIG. 5)
Replace the O-rings in the packing
gland. Only original Danvalve O-
rings should be used.
To achieve the optimal tightness,
the rail in the middle of the
packing gland must be filled with
original grease supplied by Danvalve
(part No. 2452+143).
No 2516+257 Sheet: 2/2 Rev. 1
QDV15.P65
Fig. 4
Fig. 7
DISASSEMBLAGE OF THE VALVE
(FIG. 7)
Obs.: Do not remove the top
part, while the valve is still
under pressure. Loosen the lock
screw pos. A before unscrewing
the top part. In order to prevent
the spindle from loosing mesh
with the thread of the top part, do
not dismount the handle. Check
that the gasket pos. B is un-
damged.
REPLACEMENT OF THE CONE
(FIG. 8)
Unscrew the screw pos. D by
means of an Allen key NV 2 (part
of Danvalve's set of gaskets). Rem-
ove the balls pos. E - in total 10
balls. Remove used cone. Place
new cone on the spindle, and
readd the balls. Screw on the
screw pos. D and be sure that it is
flush with the surface of the cone.
411
411
Fig. 5
B
A
Fig. 8
ASSEMBLY (FIG. 7)
Remove dirt, if any from housing
before the valve is assembled.
Check that the cone has been
screwed back towards the top part
before the top part is screwed
back into the housing. Tighten the
lock screw pos. A.
TIGHTENING
Tighten the top part with 90 NM
according to fig. 2d overleaf.
In cases of doubt please contact
distributor or factory.
PAKFORSKRUNING
Før pakforskruningen afmonteres
skal afspærringsventilen pos. C
(fig. 3) være lukket. Derefter ak-
tiveres QDV ventilen for at sikre at
denne er trykløs. Håndtag og pak-
forskruning kan nu afmonteres
15/08/00, 9:36
E
D
DANSK
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